Sustainable systems engineering by CFD modeling of lateral intake flow with flexible gate operations to improve efficient water supply

IF 3.5 2区 环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES
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引用次数: 0

Abstract

Lateral intakes are very important for diverting a portion of the river flow and providing the proper flow depth. In cases where small dams are used to operate and control the river's water level for the intake and to meet downstream water needs, the opening and closing of the dam gates before the construction of the intake and during its operation are important. In the current study, the problem of reducing the water head in the intake basin of the Hemmat dam pumping station, especially in the seasons of low water and the accumulation of sediment in the intake inlet of the Hemmat dam located in the Khuzestan province of Iran, has been investigated. Focusing on different arrangements of opening and closing gates, using a spur dike and flow rates of 143, 100, 62, 32, and 12 m3/s to investigate velocity changes and the depth of flow at the water inlet, computational fluid dynamics (CFD) simulations were done. With the spur dike, the water intake efficiency is increased by 384% compared to the project's current state (operation without any flow control structure), and the hydraulic conditions resulting in sedimentation are eliminated. The flow depth of the water intake channel, with the spur dike, increases by 10% compared to the condition without it. It is worth mentioning that gate management also affects water supply efficiency. The results of the current study are a good example of the successful application of computer simulations for sustainable systems engineering.

可持续系统工程,通过 CFD 对横向取水口水流进行建模,采用灵活的闸门操作,提高供水效率
侧向取水口对于分流部分河水和提供适当的水流深度非常重要。在使用小型水坝来操作和控制河流水位以满足取水口和下游用水需求的情况下,取水口建造前和运行期间水坝闸门的开启和关闭非常重要。本研究调查了降低 Hemmat 大坝泵站取水口流域水头的问题,尤其是在低水位季节和位于伊朗胡齐斯坦省的 Hemmat 大坝取水口泥沙淤积的情况下。针对不同的闸门启闭方式,利用支堤和 143、100、62、32 和 12 米/秒的流速,对进水口的流速变化和水流深度进行了计算流体动力学(CFD)模拟。与工程现状(无任何流量控制结构的运行)相比,采用支堤后,取水效率提高了 384%,并消除了导致沉积的水力条件。与没有支堤的情况相比,有支堤的取水渠道水深增加了 10%。值得一提的是,水闸管理也会影响供水效率。本次研究的结果是将计算机模拟成功应用于可持续系统工程的典范。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
International Journal of Sediment Research
International Journal of Sediment Research 环境科学-环境科学
CiteScore
6.90
自引率
5.60%
发文量
88
审稿时长
74 days
期刊介绍: International Journal of Sediment Research, the Official Journal of The International Research and Training Center on Erosion and Sedimentation and The World Association for Sedimentation and Erosion Research, publishes scientific and technical papers on all aspects of erosion and sedimentation interpreted in its widest sense. The subject matter is to include not only the mechanics of sediment transport and fluvial processes, but also what is related to geography, geomorphology, soil erosion, watershed management, sedimentology, environmental and ecological impacts of sedimentation, social and economical effects of sedimentation and its assessment, etc. Special attention is paid to engineering problems related to sedimentation and erosion.
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